EP1654744A1 - Capacitor module and method for the production thereof - Google Patents

Capacitor module and method for the production thereof

Info

Publication number
EP1654744A1
EP1654744A1 EP04762630A EP04762630A EP1654744A1 EP 1654744 A1 EP1654744 A1 EP 1654744A1 EP 04762630 A EP04762630 A EP 04762630A EP 04762630 A EP04762630 A EP 04762630A EP 1654744 A1 EP1654744 A1 EP 1654744A1
Authority
EP
European Patent Office
Prior art keywords
capacitor module
electrical
conductor
electrical connections
module according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04762630A
Other languages
German (de)
French (fr)
Other versions
EP1654744B1 (en
Inventor
Hubertus Goesmann
Hartmut Michel
Stefan Nowak
Michael Setz
Bernd Staib
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Electronics AG
Original Assignee
Epcos AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Epcos AG filed Critical Epcos AG
Publication of EP1654744A1 publication Critical patent/EP1654744A1/en
Application granted granted Critical
Publication of EP1654744B1 publication Critical patent/EP1654744B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/38—Multiple capacitors, i.e. structural combinations of fixed capacitors

Definitions

  • the cell voltage is generally limited to a few volts.
  • operating voltages are required which are significantly higher, so that several capacitors are connected in series to form a capacitor module.
  • the individual capacitors are often connected to further capacitors via connecting plates (see FIG. 1).
  • Individual capacitors often have a different self-discharge behavior, so that the total voltage is often not evenly distributed over the individual capacitors.
  • overvoltages can occur on individual capacitors, which can lead to rapid aging or even destruction of the capacitor module.
  • the electrical connections are voltage-metrized using complex measures for controlled self-discharge.
  • capacitors are often provided with solderable wired resistors or soldered with printed circuit boards on which resistors are present.
  • the wired resistors can be called
  • Solder tags are connected to the electrical connections, these solder tags being riveted.
  • the voltage balancing of individual capacitors in a capacitor module therefore requires many individual work steps and is therefore very time-consuming and therefore cost-intensive.
  • the aim of the present invention is to provide a capacitor module which is improved with respect to the disadvantages mentioned above.
  • the invention describes a capacitor module in which there is at least one first and one second capacitor, each with a first and a second external electrical connection.
  • the first electrical connections of both capacitors are electrically connected via a flat conductor.
  • the advantage of the capacitor module according to the invention is that by means of one circuit board, which is both electrically conductive with the first electrical connections and also with the second electrical connections of the two. Capacitors is connected, in a particularly simple manner - a balancing of two capacitors. can be achieved (see for example Figure 2). With conventional voltage balancing, considerably more work steps are necessary, since only a single capacitor is used at a time and not as in the case. capacitor module according to the invention two capacitors are voltage balanced.
  • the capacitor according to the invention is that due to the reduced number of components for the power balancing as compared to conventional modules, an inventive capacitor module during operation 'is more reliable, since fewer components are present, the defect could lead to a deterioration of the capacitor module according to ,
  • a capacitor module according to the invention is also advantageous in which the additional electrical connection between the conductor and the second electrical connections comprises a wire.
  • the wire is advantageously laser-weldable, so that it is particularly simple and durable with the Conductor and the ' second electrical connections of the first and second capacitors can be connected.
  • the wire is advantageously an aluminum wire with a thickness of approximately 2. mm. '5 •
  • additional electrical devices that produce a high-resistance electrical connection.
  • the electrical components advantageously comprise electrical resistors.
  • the electrical resistors particularly advantageously enable a high-resistance electrical connection as is required for voltage balancing.
  • the electrical resistors in SMD construction are arranged directly on the flat conductor.
  • the flat-shaped conductor can comprise, for example, an epoxy resin plate in the copper conductor tracks for electrical contacting of the electrical connections of the contacts.
  • the : second electrical connections. -bei-. of the capacitors are electrically connected to one another via a first connecting plate.
  • the first connecting plate is then advantageously in electrical contact with the flat conductor.
  • the first connecting plate can be used to implement an internal series connection between individual capacitors in the capacitor module.
  • the first connection can also serve to produce a contact between the two second electrical connections of the two capacitors and the flat conductor, which is particularly easy to implement, for example via a wire (see for example Figure 2).
  • the flat conductor is advantageously in electrical contact with the first electrical connections via laser-weldable connections.
  • the laser-weldable • connections can be, for example. act nickel-plated or tin-plated connecting plates, which are present on the flat • formed conductor. The connection plates are then connected to the first electrical connections by means of laser welding spots. Connected conclusions.
  • the advantage of laser weldable Bonds is that a particularly strong and durable, integral, electrically conductive connection can be achieved due to laser welding.
  • the integral connection, in which the materials of the connecting plates and the first electrical connections, for example aluminum in both cases, connect directly to one another is particularly advantageous.
  • At least one of the first electrical connections of one of the two capacitors can be electrically conductively connected to a third capacitor in the capacitor module via a second connecting plate.
  • additional capacitors can be connected in series in addition to the two already existing first and second capacitors in the capacitor module according to the invention (see, for example, FIGS. 2 and 3).
  • the flat conductor can comprise a plastic plate.
  • Plastic plates are particularly simple and inexpensive to produce, it being particularly easy to produce electrically conductive conductor tracks on these plastic plates, for example in the form of copper conductor tracks, which can be used for the electrical connection of the resistors implemented in SMD construction (see, for example, FIG. 3).
  • the invention further relates to a method for producing a capacitor module in which at least two capacitors, each with a first and a second electrical connection, are provided and in which their first electrical connections are connected in an electrically conductive manner by means of welding to a flat conductor.
  • the conductor is electrically conductively connected to the two second electrical connections by means of welding.
  • the method according to the invention allows a particularly simple balancing of two electrical capacitors in a capacitor module that can be carried out in one method step.
  • the welding of the electrical connections enables a particularly permanent and firm balancing of the two capacitors in the capacitor module.
  • a flat conductor is advantageously used, on which electrical components, for example resistors, are preassembled in order to produce a high-resistance electrical connection.
  • the capacitor module Due to the use of pre-assembled circuit boards on which the resistors are arranged, the capacitor module is particularly easy to assemble, since the resistors are no longer individually connected to the capacitor connections must be connected, as is the case with conventional capacitor modules (see, for example, FIG. 1).
  • the metals of the first electrical connections eg Al
  • the metal of the connection plates often also aluminum.
  • the conductor is advantageously conductively connected to the two second electrical connections by means of an electrically conductive wire, for example an aluminum wire. It is particularly advantageous if the wire is brought into electrically conductive contact with the flat-shaped conductor by means of a further tin-plated or nickel-plated connecting plate (see, for example, FIGS. 2 or 3).
  • the wire can be inserted into the further tin-plated or nickel-plated connection plate by means of a connection hole, after which a permanent connection can be established by means of laser welding.
  • tin-plated or nickel-plated connecting plates are provided on the flat-shaped conductor both for contacting the first electrical connections of the capacitors and for contacting the wire for the second electrical connections and, moreover, the contact areas between " the first electrical connections and tinned or nickel-plated on a second connecting plate.
  • this second connecting plate serves for the series connection of further condensers gates in the capacitor module according to the invention.
  • the contacts for the balancing contacts between the first electrical connections and the flat-shaped conductor, contact between the flat-shaped conductor and the wire for contacting the second electrical connection
  • the contacts for the series connection of several capacitors in the capacitor module according to the invention contacts between the first electrically conductive connections and the second connecting plate
  • Figure 1 shows a perspective view of a conventional capacitor module
  • FIG. 2 shows a perspective view of a variant of a capacitor module according to the invention
  • FIG. 1 shows a conventional capacitor module 2 in which a first capacitor 60 and a second capacitor 65 are shown in the foreground. Further: capacitors can be connected in series via the first electrical connections 60A and 65A of these two capacitors. Furthermore, there is a second connection plate 30, which connects the second electrical connections 60B and 65B, which are shown in dashed lines and are present at the bottom of both capacitors, to one another in an electrically conductive manner. Both capacitors 60 and 65 are symmetrically separated from one another using two different conventional methods.
  • an electrically conductive encryption is binding between the first electric terminal 60A 'and the second electrical terminal 60B middlemen prepared harnessoh ig a wired ⁇ capitaes.25.
  • What is particularly complex is the wire 21 of the electrical resistor 25 connected to both the first electrical connection 60A and the second electrical connection 60B via soldering lugs 70.
  • the two soldering lugs 70 of the first and second electrical connections are connected to the second connection plate. Rivets 26A.0.0.- or to the first connection plate -45 via rivets 26A.
  • the second capacitor 65 is also symmetrized by means of a resistor which establishes a high-resistance electrical connection between the first connection 65A and the second connection 65B.
  • a printed circuit board 26 ′′ is used, on which an electrical resistor 25 is arranged.
  • This electrical resistor is fastened on the electrical connection plate 45 by means of a rivet 26A there is a wire 21, which connects a solder tab 70, which is arranged on the second connection plate 30, in an electrically conductive manner to the printed circuit board 26A and the resistor 25.
  • FIG. 2 shows a perspective view of a variant of a capacitor module 1 according to the invention.
  • a first capacitor 5 and a second capacitor 10 are shown, each of which has a first electrical connection 5A, 10A and a second electrical connection 5B, 10B on the bottom of the respective capacitor.
  • a flat-shaped conductor 15 for example in the form of an epoxy resin plate, on which electrically conductive conductor tracks, for example copper conductor tracks, are formed.
  • This conductor 15 also has on its underside in FIG. 2 “electrical components shown in broken lines in the form of resistors 25.
  • the flat-shaped conductor 15 is connected to the first connections 5A, 10A by means of two, advantageously tin-plated or nickel-plated connection plates 35 via second connection plates 45.
  • These second connecting plates 45 make contact on the one hand with the first electrical connections 5A and 10A of the two capacitors and enable a series connection with further capacitors, for example capacitor 40 in a capacitor module according to the invention. Since the second connection plates 45 are also in electrical contact with the first electrical connections 5A and 10A, an electrical connection of the conductor 15 to the first electrical connections is thus established via the connection plates 35.
  • a further connection plate 36 with a There is a hole 36A for connecting the wire 20. This wire 20 is electrically conductively connected to the second electrical connections 5B and 10B via the first connection plate 30.
  • capacitor module constructed in this way it is readily possible due to the tinned or nickel-plated connecting plates 35 or 36, by means of a single laser welding step, to establish a permanent and good connection between the flat conductor 15 and the first electrical connections 5A and 10A via the laser-weldable tinned or nickel-plated connecting plates 35 to produce and at the same time to weld the connecting plate 36 and the wire 20.
  • the connecting segments 5C, IOC can additionally be laser welded to the connecting plates 45.
  • two capacitors 5 and 10 can be symmetrized together in one step and connected to one another. Due to the permanent laser welded connections and the simple assembly, capacitor modules according to the invention are less susceptible to faults than conventional .Modules and at the same time are less expensive to produce.
  • FIG. 3 shows a plan view of a capacitor module according to the invention, a first capacitor 5 and a second capacitor 10 are shown in the right-hand area of FIG. 3, which are symmetrized together via a flat conductor 15.
  • the flat-shaped conductor 15, here a printed circuit board, is electrically conductively connected to the respective first electrical connections 5A and 10A via connecting plates 35.
  • an electrically conductive connection is established between the printed circuit board 15 and a second connecting plate 45, which is in electrical contact with the first electrical connection 5A.
  • the second connecting plate 45 is used for circuit of the capacitor 5 with a third capacitor 110.
  • Two resistors 25 in SMD construction are arranged on the circuit board 15.
  • the printed circuit board 15 advantageously consists of an epoxy resin plate or a hard paper plate on which copper conductor tracks 15A are arranged, which ensure electrical connection of the resistors 25 to the first electrical connections 5A and 10A.
  • a screw connection 100 is also provided for the fixed connection.
  • the invention is not limited to the exemplary embodiments and figures shown here. Further variations are possible above all in terms of the contact between the flat conductor and the first electrical connections and also between the contacting of the conductor and the second electrical connections.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Ceramic Capacitors (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

The invention relates to a capacitor module (1) enabling two capacitors (5, 10) to be connected together in a simple and electrically conductive manner by means of electric connections thereof (5A, 10A, 5B, 10B), via a flat conductor (15). A capacitor module of said type (1) has improved balance.

Description

Kondensatormodul und Verfahren zu dessen HerstellungCapacitor module and method for its production
Bei Kondensatoren, zum Beispiel Doppelschichtkondensatoren ist in der Regel die Zellenspannung auf wenige Volt begrenzt. Für sehr viele Anwendungen werden allerdings Betriebsspannungen benötigt die wesentlich höher sind, so daß mehrere Kondensatoren zu einen Kondensatormodul in Reihe geschaltet werden. Bei Kondensatormodulen werden die einzelnen Kondensato- ren häufig über Anschlußbleche mit weiteren Kondensatoren verbunden (siehe Figur 1) . Einzelne Kondensatoren weisen dabei häufig ein voneinander abweichendes Selbstentladungsverhalten auf, so daß sich die GesamtSpannung häufig nicht gleichmäßig auf die einzelnen Kondensatoren verteilt. Dadurch können an einzelnen Kondensatoren Überspannungen auftreten, die zur- schnellen Alterung bis hin zur Zerstörung des Kondensatormoduls führen. Aus diesem Grunde werden häufig für eine kontrollierte Selbstentladung die elektrischen Anschlüsse mittels aufwendiger Maßnahmen spannungssy metriert . Dazu wer- den häufig hochohmige elektrische Verbindungen zwischen den beiden elektrischen Anschlüssen eines Kondensators angebracht. Dabei werden die Kondensatoren häufig mit lötbaren verdrahteten Widerständen versehen oder mit bestückten Leiterplatten auf denen Widerstände vorhanden sind, verlötet. Die verdrahteten Widerstände können dabei über sogenannteIn the case of capacitors, for example double-layer capacitors, the cell voltage is generally limited to a few volts. For many applications, however, operating voltages are required which are significantly higher, so that several capacitors are connected in series to form a capacitor module. In the case of capacitor modules, the individual capacitors are often connected to further capacitors via connecting plates (see FIG. 1). Individual capacitors often have a different self-discharge behavior, so that the total voltage is often not evenly distributed over the individual capacitors. As a result, overvoltages can occur on individual capacitors, which can lead to rapid aging or even destruction of the capacitor module. For this reason, the electrical connections are voltage-metrized using complex measures for controlled self-discharge. For this purpose, high-resistance electrical connections are often made between the two electrical connections of a capacitor. The capacitors are often provided with solderable wired resistors or soldered with printed circuit boards on which resistors are present. The wired resistors can be called
Lötfahnen mit den elektrischen Anschlüssen verbunden werden, wobei diese Lötfahnen vernietet sind. Die Spannungssymmetrie- rung von einzelnen Kondensatoren in einem Kondensatormodül erfordert damit viele einzelne Arbeitsschritte und ist aus diesem Grunde sehr zeit- und damit auch kostenintensiv.Solder tags are connected to the electrical connections, these solder tags being riveted. The voltage balancing of individual capacitors in a capacitor module therefore requires many individual work steps and is therefore very time-consuming and therefore cost-intensive.
Ziel der.,vorliegenden Erfindung ist es, ein Kondensatormodul anzugeben, das bezüglich der oben genannten Nachteile verbessert ist.The aim of the present invention is to provide a capacitor module which is improved with respect to the disadvantages mentioned above.
Diese Ziel wird erfindungsgemäß durch ein Kondensator odύl nach Anspruch 1 erreicht. Vorteilhafte Ausgestaltungen des Kondensatormoduls sowie' ein Herstellungsverfahren für das Kondensatormodul sind Gegenstand weiterer Ansprüche.This goal is achieved according to the invention by a capacitor odύl according to claim 1. Advantageous embodiments of the Capacitor module and a manufacturing process for the capacitor module are the subject of further claims.
Die Erfindung beschreibt ein Kondensatormodul, bei dem wenig- stens ein erster und ein zweiter Kondensator mit jeweils einem ersten und zweiten externen elektrischen Anschluß vorhanden ist. Die ersten elektrischen Anschlüsse beider Kondensatoren sind elektrisch leitend über einen flächig ausgeformten Leiter verbunden. Zwischen dem Leiter und den beiden zweiten elektrischen Anschlüssen besteht eine zusätzliche elektrisch leitende Verbindung.The invention describes a capacitor module in which there is at least one first and one second capacitor, each with a first and a second external electrical connection. The first electrical connections of both capacitors are electrically connected via a flat conductor. There is an additional electrically conductive connection between the conductor and the two second electrical connections.
Der Vorteil des erfindungsgemäßen Kondensatormoduls besteht darin, daß mittels der einen Leiterplatte, die sowohl elek- trisch leitend mit den ersten elektrischen Anschlüssen als auch mit den zweiten elektrischen Anschlüssen der beiden. Kondensatoren verbunden ist, auf besonders einfache Art und Weise -ein Symmetrierung von zwei Kondensatoren. erreicht werden kann (siehe beispielsweise Figur 2) . Bei herkömmlichen Span- nungssymmetrierungen sind wesentlich mehr Arbeitsschritte nötig, da jeweils immer nur ein einzelner Kondensator und nicht wie bei dem. erfindungsgemäßen Kondensatormodul zwei Kondensatoren spannungssymmetriert werden.The advantage of the capacitor module according to the invention is that by means of one circuit board, which is both electrically conductive with the first electrical connections and also with the second electrical connections of the two. Capacitors is connected, in a particularly simple manner - a balancing of two capacitors. can be achieved (see for example Figure 2). With conventional voltage balancing, considerably more work steps are necessary, since only a single capacitor is used at a time and not as in the case. capacitor module according to the invention two capacitors are voltage balanced.
Weiterhin besteht der Vorteil des erfindungsgemäßen Kondensators darin, daß aufgrund der reduzierten Anzahl von Bauteilen für die Spannung symmetrierung im Vergleich zu herkömmlichen Modulen ein erfindungsgemäßes Kondensatormodul im Betrieb' zuverlässiger ist, da weniger Bauteile vorhanden sind, deren Defekt eine Beeinträchtigung des Kondensatormoduls nach sich ziehen könnte.Furthermore, there is the advantage of the capacitor according to the invention is that due to the reduced number of components for the power balancing as compared to conventional modules, an inventive capacitor module during operation 'is more reliable, since fewer components are present, the defect could lead to a deterioration of the capacitor module according to ,
Vorteilhaft ist weiterhin ein erfindungsgemäßes Kondensator- odul bei dem die zusätzliche elektrische Verbindung zwischen dem Leiter und den zweiten elektrischen Anschlüssen einen Draht umfaßt. Der Draht ist dabei vorteilhafterweise las.er- schweißbar, so daß er besonders einfach und dauerhaft mit dem Leiter sowie den' zweiten elektrischen Anschlüssen des ersten und zweiten Kondensators verbunden werden kann. Vorteilhaf- terweise ist der Draht ein Aluminiuradraht mit einer Dicke von etwa 2.mm. '5 • In einer anderen vorteilhaften Variante eines erfindungsgemäßen Kondensatorsmoduls sind auf dem flächig ausgeformten Leiter zusätzliche elektrische Bauelemente vorhanden, die eine hochohmige elektrische Verbindung herstellen. Die elektri- •10 " sehen Bauelemente umfassen dabei vorteilhafterweise elektrische Widerstände. Die elektrischen Widerstände ermöglichen dabei besonders vorteilhaft eine hochohmige elektrische Verbindung wie sie für Spannungssymmetrierungen benötigt wird.A capacitor module according to the invention is also advantageous in which the additional electrical connection between the conductor and the second electrical connections comprises a wire. The wire is advantageously laser-weldable, so that it is particularly simple and durable with the Conductor and the ' second electrical connections of the first and second capacitors can be connected. The wire is advantageously an aluminum wire with a thickness of approximately 2. mm. '5 • In another advantageous variant of a capacitor module according to the invention are present on the dimensionally shaped conductor, additional electrical devices that produce a high-resistance electrical connection. The electrical components advantageously comprise electrical resistors. The electrical resistors particularly advantageously enable a high-resistance electrical connection as is required for voltage balancing.
15 Vorteilhafterweise sind die elektrischen Widerstände in SMD- Bauweise direkt auf dem flächig ausgeformten Leiter angeordnet. Der flächig ausgeformte Leiter kann beispielsweise eine Epoxidharzplatte umfassen in der Kupferleiterbahnen • zur elektrischen Kontaktierung der elektrischen Anschlüsse der Kon-15 Advantageously, the electrical resistors in SMD construction are arranged directly on the flat conductor. The flat-shaped conductor can comprise, for example, an epoxy resin plate in the copper conductor tracks for electrical contacting of the electrical connections of the contacts.
20 densatoren und der elektrischen Bauelemente vorhanden sind.20 capacitors and the electrical components are present.
In einer weiteren Ausgestaltung eines erfindungsgemäßen Kondensatormoduls sind die: zweiten elektrischen Anschlüsse. -bei- . der Kondensatoren über ein erstes Verbindungsblech elektrisch 25 leitend miteinander verbunden. Das erste Verbindungsblech steht dann günstigerweise im elektrischen Kontakt mit dem flächig ausgeformten Leiter.In a further embodiment of a capacitor module according to the invention, the : second electrical connections. -bei-. of the capacitors are electrically connected to one another via a first connecting plate. The first connecting plate is then advantageously in electrical contact with the flat conductor.
Das erste Verbindungsblech kann dazu dienen eine interne Rei- 30 henschaltung zwischen einzelnen- Kondensatoren im Kondensatormodul zu realisieren. Bei dieser Ausführungsform eines erfindungsgemäßen Kondensatormoduls kann das erste Verbindung--?- blech gleichzeitig dazu dienen, einen besonders einfach zu realisierenden Kontakt zwischen den beiden zweiten elektri- 35 sehen Anschlüssen der beiden Kondensatoren und dem flächig ausgeformten Leiter, z.B. über einen Draht herzustellen (siehe beispielsweise Figur 2) . Günstigerweise steht der flächig ausgeformte Leiter über laserschweißbare Verbindungen im elektrischen Kontakt mit den ersten elektrischen Anschlüssen. Bei dem laserschweißbaren • Verbindungen kann es sich beispielsweise um. vernickelte oder verzinnte Anschlußbleche handeln, die an dem flächig ausge- • formten Leiter vorhanden sind. Die Anschlußbleche sind dann mittels Laserschweißpunkten mit den ersten elektrischen An- . Schlüssen verbunden. Der Vorteil der laserschweißbaren Ver-. bindungen besteht darin, daß aufgrund des Laserschweißens eine besonders feste und dauerhafte, stoffschlüssige elektrisch leitende Verbindung erzielt werden kann. Die stoffschlüssige Verbindung, bei der sich die Materialien der Anschlußbleche und der ersten elektrischen Anschlüsse, zum Beispiel in bei- den Fällen Aluminium, direkt miteinander verbinden ist besonders vorteilhaft.The first connecting plate can be used to implement an internal series connection between individual capacitors in the capacitor module. In this embodiment of a capacitor module according to the invention, the first connection can also serve to produce a contact between the two second electrical connections of the two capacitors and the flat conductor, which is particularly easy to implement, for example via a wire (see for example Figure 2). The flat conductor is advantageously in electrical contact with the first electrical connections via laser-weldable connections. The laser-weldable • connections can be, for example. act nickel-plated or tin-plated connecting plates, which are present on the flat • formed conductor. The connection plates are then connected to the first electrical connections by means of laser welding spots. Connected conclusions. The advantage of laser weldable Bonds is that a particularly strong and durable, integral, electrically conductive connection can be achieved due to laser welding. The integral connection, in which the materials of the connecting plates and the first electrical connections, for example aluminum in both cases, connect directly to one another is particularly advantageous.
Weiterhin■ kann zumindest einer der ersten elektrischen An- - Schlüsse eines- der beiden Kondensatoren mit einem dritten Kondensator im Kondensatormodul elektrisch leitend über ein zweites Verbindungsblech verbunden sein.Furthermore, at least one of the first electrical connections of one of the two capacitors can be electrically conductively connected to a third capacitor in the capacitor module via a second connecting plate.
Mittels des zusätzlichen zweiten Verbindungsblechs können weitere Kondensatoren zusätzlich zu den beiden bereits vor- handenen ersten und zweiten Kondensatoren im erfindungsgemäßen Kondensatormodul in Reihe geschaltet werden (siehe beispielsweise Figuren 2 und -3) .By means of the additional second connecting plate, additional capacitors can be connected in series in addition to the two already existing first and second capacitors in the capacitor module according to the invention (see, for example, FIGS. 2 and 3).
Bei einem derartigen Kondensatormodul mit einem zweiten Ver- bindungsblech ist es besonders, vorteilhaft wenn die "Kontaktbereiche zwischen den ersten elektrischen Anschlüssen und dem zweiten Verbindungsblech laserschweißbar sind. Während des Laserschweißens verbindet sich das Metall der ersten elektrischen Anschlüsse, häufig Aluminium, stoffschlüssig mit dem Material des zweiten Verbindungsblechs, das häufig ebenfalls Aluminium, ist, so daß eine besonders dauerhafte und feste Verbindung resultiert. Bei einem erfindungsgemäßen Kondensatormodul kann der flächig ausgeformte Leiter eine Kunststoffplatte umfassen. Kunststoffplatten sind besonders einfach und billig herzustellen, wobei auf diesen Kunststoffplatten besonders einfach elektrisch leitende Leiterbahnen zum Beispiel in der Form von Kupferleiterbahnen realisiert werden können, die zur elektrischen Anbindung der in SMD-Bauweise verwirklichten Widerstände dienen können (siehe beispielsweise Figur 3) .In such a capacitor module having a second connecting plate, it is particularly advantageous when the "contact areas between the first electrical terminals and the second connecting plate are laser-weldable. During laser welding, the metal of the first electrical connections often connects, aluminum, a material fit with the material of the second connecting plate, which is often also aluminum, so that a particularly durable and firm connection results. In a capacitor module according to the invention, the flat conductor can comprise a plastic plate. Plastic plates are particularly simple and inexpensive to produce, it being particularly easy to produce electrically conductive conductor tracks on these plastic plates, for example in the form of copper conductor tracks, which can be used for the electrical connection of the resistors implemented in SMD construction (see, for example, FIG. 3).
Gegenstand der Erfindung ist weiterhin ein Verfahren zur Herstellung eines Kondensatormoduls bei dem wenigstens zwei Kondensatoren mit jeweils einem ersten und zweiten elektrischen Anschluß bereitgestellt werden und bei dem deren erste elek- trische Anschlüsse mittels Schweißens mit einem flächig ausgeformten Leiter elektrisch leitend verbunden werden. Dabei wird zusätzlich im gleichen Verfahrensschritt der Leiter elektrisch leitend mittels Schweißen mit den beiden zweiten elektrischen Anschlüssen elektrisch leitend verbunden.The invention further relates to a method for producing a capacitor module in which at least two capacitors, each with a first and a second electrical connection, are provided and in which their first electrical connections are connected in an electrically conductive manner by means of welding to a flat conductor. In addition, in the same method step, the conductor is electrically conductively connected to the two second electrical connections by means of welding.
Das erfindungsgemäße Verfahren erlaubt eine besonders einfache in einem Verfahrensschritt durchführbare Symmetrierung von zwei elektrischen Kondensatoren in einem Kondensatormodul . Das Schweißen der elektrischen Verbindungen ermöglicht dabei eine besonders dauerhafte und feste Symmetrierung der beiden Kondensatoren im Kondensatormodul .The method according to the invention allows a particularly simple balancing of two electrical capacitors in a capacitor module that can be carried out in one method step. The welding of the electrical connections enables a particularly permanent and firm balancing of the two capacitors in the capacitor module.
Vorteilhafterweise wird bei dem erfindungsgemäßen Verfahren ein flächig ausgeformter Leiter verwendet, auf dem elektri- sehe Bauelemente, beispielsweise Widerstände zur Herstellung einer hochohmigen elektrischen Verbindung vormontiert sind.In the method according to the invention, a flat conductor is advantageously used, on which electrical components, for example resistors, are preassembled in order to produce a high-resistance electrical connection.
Aufgrund der Verwendung von vormontierten Leiterplatten auf denen die Widerstände angeordnet sind, ergibt sich ein beson- ders einfaches Assemblieren des Kondensatormoduls, da die Widerstände nicht mehr einzeln mit den Kondensatoranschlüssen verbunden werden müssen, wie dies bei herkömmlichen Kondensatormodulen der Fall -ist (siehe 'beispielsweise- Figur 1) ..Due to the use of pre-assembled circuit boards on which the resistors are arranged, the capacitor module is particularly easy to assemble, since the resistors are no longer individually connected to the capacitor connections must be connected, as is the case with conventional capacitor modules (see, for example, FIG. 1).
Vorteilhafterweise werden verzinnte oder vernickelte An- schlußbleche, die' an dem Leiter als Kontakte zu den ersten elektrischen Anschlüssen vorhanden sind, laserverschweißt. Verzinnte oder vernickelte. Bereiche ermöglichen es besonders gut die Anschlußbleche mittels- Laserschweißens an die ersten elektrischen Anschlüsse, anzubinden. Während des Laserschwei- ßens verdampft die Nickel- oder Zinnschicht und ermöglicht eine stoffschlüssige Verbindung zwischen den Metallen der ersten elektrischen Anschlüsse (z.B. AI) und dem Metall der Anschlußbleche, häufig ebenfalls Aluminium.Advantageously, circuit, tinned or nickel plated sheets arrival present 'on the conductor as contacts for the first electrical terminals, are laser-welded. Tinned or nickel-plated. Areas make it particularly easy to connect the connection plates to the first electrical connections by means of laser welding. During the laser welding, the nickel or tin layer evaporates and enables a material connection between the metals of the first electrical connections (eg Al) and the metal of the connection plates, often also aluminum.
Vorteilhafterweis.e wird der Leiter mittels eines elektrisch leitenden Drahts, zum Beispiel eines Aluminiumdrahts mit den beiden zweiten elektrischen Anschlüssen elektrisch leitendverbunden. Dabei ist es besonders vorteilhaft wenn der Draht mittels eines weiteren verzinnten oder vernickelten Anschluß- blechs im elektrisch leitenden Kontakt mit dem flächig ausgeformten Leiter gebracht wird (siehe beispielsweise Figuren 2 oder 3) .The conductor is advantageously conductively connected to the two second electrical connections by means of an electrically conductive wire, for example an aluminum wire. It is particularly advantageous if the wire is brought into electrically conductive contact with the flat-shaped conductor by means of a further tin-plated or nickel-plated connecting plate (see, for example, FIGS. 2 or 3).
Mittels eines Anschlußlochs kann dabei der Draht in das wei- tere verzinnte oder vernickelte Anschlußblech gesteckt wer-- den, wobei anschließend eine permanente Verbindung mittels Laserschweißen hergestellt werden kann.The wire can be inserted into the further tin-plated or nickel-plated connection plate by means of a connection hole, after which a permanent connection can be established by means of laser welding.
Besonders vorteilhaft ist es wenn an dem flächig ausgeformten Leiter verzinnte oder vernickelte Anschlußbleche sowohl für die Kontaktierung der ersten elektrischen Anschlüsse der Kondensatoren als auch für die Kontaktierung des Drahts für die zweiten elektrischen Anschlüsse vorgesehen werden und darüber hinaus die Kontaktbereiche zwische "den ersten elektrischen Anschlüssen und einem zweiten Verbindungsblech verzinnt oder vernickelt sind. Dieses zweite Verbindungsblech dient wie bereits oben genannt zur Reihenschaltung von weiteren Kondensa- toren im erfindungsgemäßen Kondensatormodul. Bei diesem Verfahren ist es dann besonders einfach möglich in einem LaserschweißschrittIt is particularly advantageous if tin-plated or nickel-plated connecting plates are provided on the flat-shaped conductor both for contacting the first electrical connections of the capacitors and for contacting the wire for the second electrical connections and, moreover, the contact areas between " the first electrical connections and tinned or nickel-plated on a second connecting plate. As already mentioned above, this second connecting plate serves for the series connection of further condensers gates in the capacitor module according to the invention. With this method, it is then particularly easily possible in a laser welding step
- sowohl die ersten elektrischen Anschlüsse der beiden Kon- densatoren mit dem zweiten Verbindungsblech zu verschweißen,- to weld both the first electrical connections of the two capacitors to the second connection plate,
- als auch die verzinnten oder vernickelten Anschlußbleche zwischen den ersten Anschlüssen und dem flächig ausgeformten Leiter zu verschweißen und - zusätzlich die Verbindung zwischen dem flächig ausgeformten Leiter und dem Draht zur Anbindung an die zweiten elektrischen Anschlüsse zu verschweißen.- As well as to weld the tin-plated or nickel-plated connecting plates between the first connections and the flat-shaped conductor and - in addition to weld the connection between the flat-shaped conductor and the wire for connection to the second electrical connections.
Bei einer derartigen Variante eines erfindungsgemäßen Verfah- rens lassen sich damit in einem Verfahrensschritt sowohl die Kontaktierungen für die Symmetrierung (Kontakte zwischen den ersten elektrischen Anschlüssen und den flächig ausgeformten Leiter, Kontakt zwischen dem flächig ausgeformten Leiter und dem Draht zur Kontaktierung der zweiten elektrischen An- Schlüsse) als auch die Kontakte zur Reihenschaltung von mehreren Kondensatoren im erfindungsgemäßen Kondensatormodul (Kontakte zwischen ersten elektrisch leitenden Anschlüssen und zweitem Verbindungsblech) in einem Verfahrensschritt verschweißen.With such a variant of a method according to the invention, the contacts for the balancing (contacts between the first electrical connections and the flat-shaped conductor, contact between the flat-shaped conductor and the wire for contacting the second electrical connection) Conclusions) as well as the contacts for the series connection of several capacitors in the capacitor module according to the invention (contacts between the first electrically conductive connections and the second connecting plate) in one process step.
Im folgenden soll die Erfindung anhand von Ausführungsbeispielen und schematischen Figuren noch näher erläutert werden.The invention is to be explained in more detail below with the aid of exemplary embodiments and schematic figures.
Figur 1 zeigt eine perspektivische Ansicht eines herkömmlichen KondensatormodulsFigure 1 shows a perspective view of a conventional capacitor module
Figur 2 zeigt eine perspektivische Ansicht einer Variante eines erfindungsgemäßen KondensatormodulsFIG. 2 shows a perspective view of a variant of a capacitor module according to the invention
Figur 3 zeigt eine Variante eines erfindungsgemäßen Kondensatormoduls in der Aufsicht. Figur 1 zeigt ein herkömmliches Kondensatormodul 2 bei dem ein erster Kondensator 60 und ein zweiter Kondensator 65 im Vordergrund gezeigt sind. Weitere: Kondensatoren können über die ersten elektrischen Anschlüsse 60A und 65A dieser beiden Kondensatoren in Reihe geschaltet werden. Weiterhin ist ein zweites Anschlußblech- 30 vorhanden, das die gestrichelt gezeichneten, am Boden beider- Kondensatoren vorhandenen zweiten elektrischen Anschlüsse 60B und 65B elektrisch leitend mit- einander verbindet. Beide Kondensatoren 60 und 65 sind getrennt voneinander mittels zweier unterschiedlicher herkömmlicher Methoden symmetriert .Figure 3 shows a variant of a capacitor module according to the invention in plan view. FIG. 1 shows a conventional capacitor module 2 in which a first capacitor 60 and a second capacitor 65 are shown in the foreground. Further: capacitors can be connected in series via the first electrical connections 60A and 65A of these two capacitors. Furthermore, there is a second connection plate 30, which connects the second electrical connections 60B and 65B, which are shown in dashed lines and are present at the bottom of both capacitors, to one another in an electrically conductive manner. Both capacitors 60 and 65 are symmetrically separated from one another using two different conventional methods.
Beim ersten Kondensator 60 wird eine elektrisch leitende Ver- bindung zwischen dem ersten elektrischen Anschluß 60A' und dem zweiten elektrischen Anschluß 60B mittels- eines verdrahteten ■ Widerstandes.25 hochoh ig hergestellt. Dabei wird, was besonders aufwendig .ist, der Draht 21 des elektrischen Widerstandes 25 sowohl am ersten elektrischen Anschluß 60A als auch am zweiten- elektrischen-Anschluß 60B über Lötfahnen 70 angebun-- den. Die beiden Lötfahnen 70 des ersten und zweiten elektrischen.Anschlusses sind dabei über Nieten 26A mit dem zweiten Anschiuß.ble.ch.3.0-.-bezißhungsweise dem ersten Anschlußblech -45 verbunden.. Somit ist es bei dieser herkömmlichen Variante der Symmetrierung notwendig sowohl Lötschritte zur Anbindung des Drahts 21 ah die Lδtfahnen 70 vorzunehmen als auch die Lötfahnen separat, mittels Nieten 26A an den jeweiligen Blechen zu befestigen. Diese Symmetri'erungsmethode ist besonders zeit- und damit kostenaufwendig.In the first condenser 60, an electrically conductive encryption is binding between the first electric terminal 60A 'and the second electrical terminal 60B middlemen prepared hochoh ig a wired ■ Widerstandes.25. What is particularly complex is the wire 21 of the electrical resistor 25 connected to both the first electrical connection 60A and the second electrical connection 60B via soldering lugs 70. The two soldering lugs 70 of the first and second electrical connections are connected to the second connection plate. Rivets 26A.0.0.- or to the first connection plate -45 via rivets 26A. Thus, with this conventional variant of the balancing, both soldering steps are necessary to connect the wire 21 ah to carry out the soldering lugs 70 and also to attach the soldering lugs separately to the respective sheets by means of rivets 26A. This SYMMETRI 'erungsmethode is particularly time-consuming and costly.
Der zweite Kondensator 65 ist ebenfalls mittels eines Widerstandes der eine hochohmige elektrische Verbindung zwischen dem- ersten Anschluß 65A und dem zweiten Anschluß 65B herstellt, symmetriert. Dabei wird eine Leiterplatte 26 "verwen- det, auf der ein elektrischer Widerstand 25 angeordnet ist. Dieser elektrische Widerstand ist auf dem elektrischen- Anschlußblech 45 mittels einer Niete 26A befestigt. Weiterhin ist ein Draht 21 vorhanden, der eine Lötfahne 70 die auf dem zweiten Anschlußblech 30 angeordnet ist, elektrisch leitend mit der Leiterplatte 26A und dem Widerstand 25 verbindet. Auch bei dieser herkömmlichen Symmetrierungsmethode sind di- verse Lötschritte (Anbindung des Drahts 21 an Lötfahne 70 und an Platine 26) sowie Nietschritte (Befestigung der Leiterplatte 26 auf den zweiten Anschlußblech 45 und Befestigung der Lötfahne 70 auf dem ersten Anschlußblech 30 nötig. Somit liegt auch bei dieser Symmetrierungsmethode ein besonders zeit- und damit kostenaufwendiges Verfahren vor.The second capacitor 65 is also symmetrized by means of a resistor which establishes a high-resistance electrical connection between the first connection 65A and the second connection 65B. In this case, a printed circuit board 26 ″ is used, on which an electrical resistor 25 is arranged. This electrical resistor is fastened on the electrical connection plate 45 by means of a rivet 26A there is a wire 21, which connects a solder tab 70, which is arranged on the second connection plate 30, in an electrically conductive manner to the printed circuit board 26A and the resistor 25. In this conventional method of balancing, too, various soldering steps (connecting the wire 21 to the soldering lug 70 and the circuit board 26) and riveting steps (fastening the printed circuit board 26 to the second connection plate 45 and fastening the soldering lug 70 to the first connection plate 30 are necessary a particularly time-consuming and therefore costly method is proposed for this method of balancing.
Figur 2 zeigt eine perspektivische Ansicht einer Variante eines erfindungsgemäßen Kondensatormoduls 1. Dabei sind im Vor- dergrund wieder ein erster Kondensator 5 und ein zweiter Kondensator 10 gezeigt, die jeweils einen ersten elektrischen Anschluß 5A, 10A und einen zweiten elektrischen Anschluß 5B, 10B am Boden des jeweiligen Kondensators aufweisen. Weiterhin ist ein flächig ausgeformter Leiter 15, beispielsweise in Form einer Epoxidharzplatte auf der elektrisch leitende Leiterbahnen, zum Beispiel Kupferleiterbahnen ausgeformt sind, vorhanden. Dieser Leiter 15 weist zusätzlich auf seiner Unterseite in der Figur 2 „gestrichelt dargestellte elektrische Bauelemente in der Form von Widerständen 25 auf. Der flächig ausgeformte Leiter 15 ist mittels zweier, vorteilhafterweise verzinnter oder vernickelter Anschlußbleche 35 über zweite Verbindungsbleche 45 mit den ersten Anschlüssen 5A, 10A verbunden. Diese zweiten Verbindungsbleche 45 kontaktieren einerseits jeweils die ersten elektrischen Anschlüsse 5A und 10A der beiden Kondensatoren und ermöglichen eine Reihenschaltung mit weiteren Kondensatoren, zum Beispiel Kondensator 40 in einem erfindungsgemäßen Kondensatormodul. Da die zweiten Verbindungsbleche 45 auch im elektrischen Kontakt mit den ersten elektrischen Anschlüssen 5A und 10A stehen, wird somit über die Anschlußbleche 35 eine elektrische Anbindung des Leiters 15 an die ersten elektrische Anschlüsse hergestellt. Zusätzlich ist ein weiteres Anschlußblech 36 mit ei- nem Loch 36A zur Anbindung des Drahtes 20 vorhanden. Dieser Draht 20 ist über das erste Anschlußblech 30 mit dem zweiten elektrischen Anschlüssen 5B und 10B elektrisch leitend verbunden.FIG. 2 shows a perspective view of a variant of a capacitor module 1 according to the invention. In the foreground, a first capacitor 5 and a second capacitor 10 are shown, each of which has a first electrical connection 5A, 10A and a second electrical connection 5B, 10B on the bottom of the respective capacitor. Furthermore, there is a flat-shaped conductor 15, for example in the form of an epoxy resin plate, on which electrically conductive conductor tracks, for example copper conductor tracks, are formed. This conductor 15 also has on its underside in FIG. 2 “electrical components shown in broken lines in the form of resistors 25. The flat-shaped conductor 15 is connected to the first connections 5A, 10A by means of two, advantageously tin-plated or nickel-plated connection plates 35 via second connection plates 45. These second connecting plates 45 make contact on the one hand with the first electrical connections 5A and 10A of the two capacitors and enable a series connection with further capacitors, for example capacitor 40 in a capacitor module according to the invention. Since the second connection plates 45 are also in electrical contact with the first electrical connections 5A and 10A, an electrical connection of the conductor 15 to the first electrical connections is thus established via the connection plates 35. In addition, a further connection plate 36 with a There is a hole 36A for connecting the wire 20. This wire 20 is electrically conductively connected to the second electrical connections 5B and 10B via the first connection plate 30.
Bei einem derartig aufgebauten Kondensatormodul ist es ohne weiteres aufgrund der verzinnten oder vernickelten Anschlußbleche 35 oder 36 möglich, mittels eines einzigen Laserschweißschrittes eine dauerhafte und gute Verbindung zwischen dem flächig ausgeformten Leiter 15 und den ersten elektrischen Anschlüssen 5A und 10A über die laserschweißbaren verzinnten oder vernickelten Anschlußbleche 35 herzustellen und gleichzeitig das Verbindungsblech 36 und den Draht 20 zu verschweißen. In einem einzigen Schritt können zusätzlich die Anschlußsegmente 5C, IOC mit den Verbindungsblechen 45 laserverschweißt werden. Somit können mittels einer besonders einfachen Assemblierung und einen anschließenden Schweißschritt, der beispielsweise Laserschweißen beinhaltet zwei Kondensatoren 5 und 10 in einem Schritt gemeinsam symmetriert und it- einander verbunden werden. Aufgrund der dauerhaften Laserschweißverbindungen und der einfachen Assemblierung sind erfindungsgemäße Kondensatormodule weniger störanfällig als herkömmlich .Module und auch gleichzeitig kostengünstiger herzustellen.In a capacitor module constructed in this way, it is readily possible due to the tinned or nickel-plated connecting plates 35 or 36, by means of a single laser welding step, to establish a permanent and good connection between the flat conductor 15 and the first electrical connections 5A and 10A via the laser-weldable tinned or nickel-plated connecting plates 35 to produce and at the same time to weld the connecting plate 36 and the wire 20. In a single step, the connecting segments 5C, IOC can additionally be laser welded to the connecting plates 45. Thus, by means of a particularly simple assembly and a subsequent welding step, which includes laser welding, for example, two capacitors 5 and 10 can be symmetrized together in one step and connected to one another. Due to the permanent laser welded connections and the simple assembly, capacitor modules according to the invention are less susceptible to faults than conventional .Modules and at the same time are less expensive to produce.
Figur 3 zeigt eine Aufsicht auf ein erfindungsgemäßes Kondensatormodul, ϊm rechten Bereich der Figur 3 sind dabei ein erster Kondensator 5 und ein zweiter Kondensator 10 dargestellt, die über einen flächig ausgeformten Leiter 15 gemein- sam symmetriert sind. Der flächig ausgeformte Leiter 15, hier eine Leiterplatte ist über Anschlußbleche 35 mit den jeweiligen ersten elektrischen Anschlüssen 5A und 10A elektrisch leitend verbunden. Beim ersten Kondensator 5 kommt dabei eine elektrisch leitende Verbindung zwischen der Leiterplatte 15 und einem zweiten Verbindungsblech 45, das im elektrischen Kontakt mit dem ersten elektrischen Anschluß 5A steht, zustande. Das zweite Verbindungsblech 45 dient dabei zur Rei- henschaltung des Kondensators 5 mit einem dritten Kondensator 110. Auf der Leiterplatte 15 sind dabei zwei Widerstände 25 in SMD-Bauweise angeordnet. Die Leiterplatte 15 besteht vorteilhafterweise aus einer Epoxidharzplatte oder einer Hartpa- pierplatte auf der Kupferleiterbahnen 15A angeordnet sind, die für eine elektrische Anbindung der Widerstände 25 an die ersten elektrischen Anschlüsse 5A und 10A sorgen. Auf der Leiterplatte 15 ist weiterhin ein weiteres Anschlußblech 36 mit einem Loch 36A vorhanden in dem sich ein Draht befindet (in Figur 3 nicht gezeigt) . Dieser Draht dient zur Anbindung an ein erstes Verbindungsblech 30, das die zweiten in der Figur 3 ebenfalls nicht gezeigten elektrischen Anschlüsse beider Kondensatoren 5 und 10 miteinander verbindet. Am ersten elektrischen Anschluß 10A des Kondensators 10 ist weiterhin zur festen Verbindung eine Schraubverbindung 100 vorgesehen.FIG. 3 shows a plan view of a capacitor module according to the invention, a first capacitor 5 and a second capacitor 10 are shown in the right-hand area of FIG. 3, which are symmetrized together via a flat conductor 15. The flat-shaped conductor 15, here a printed circuit board, is electrically conductively connected to the respective first electrical connections 5A and 10A via connecting plates 35. In the case of the first capacitor 5, an electrically conductive connection is established between the printed circuit board 15 and a second connecting plate 45, which is in electrical contact with the first electrical connection 5A. The second connecting plate 45 is used for circuit of the capacitor 5 with a third capacitor 110. Two resistors 25 in SMD construction are arranged on the circuit board 15. The printed circuit board 15 advantageously consists of an epoxy resin plate or a hard paper plate on which copper conductor tracks 15A are arranged, which ensure electrical connection of the resistors 25 to the first electrical connections 5A and 10A. On the printed circuit board 15 there is also a further connection plate 36 with a hole 36A in which there is a wire (not shown in FIG. 3). This wire is used for connection to a first connecting plate 30, which connects the second electrical connections of both capacitors 5 and 10, which are also not shown in FIG. 3. At the first electrical connection 10A of the capacitor 10, a screw connection 100 is also provided for the fixed connection.
Die Erfindung beschränkt sich nicht auf die hier dargestellten Ausführungsbeispiele und Figuren.- eitere Variationen sind vor allen hinsichtlich der Kontaktierung zwischen dem flächig ausgeformten Leiter und den ersten elektrischen Anschlüssen als auch zwischen der Kontaktierung des Leiters zu den zweiten elektrischen Anschlüssen möglich. The invention is not limited to the exemplary embodiments and figures shown here. Further variations are possible above all in terms of the contact between the flat conductor and the first electrical connections and also between the contacting of the conductor and the second electrical connections.

Claims

Patentansprüche claims
1. Kondensatormodul (1) mit den Merkmalen:1. capacitor module (1) with the features:
- wenigstens ein erster (5) und ein zweiter (10) Kondensator mit jeweils einem ersten (5A, 10A) und zweiten (5B, 10B) externen elektrischen Anschluß sind vorhanden,at least a first (5) and a second (10) capacitor, each with a first (5A, 10A) and second (5B, 10B) external electrical connection, are present,
- die ersten elektrischen Anschlüsse (5A, 10A) beider Kondensatoren (5, 10) sind elektrisch leitend über einen flächig ausgeformten Leiter (15) verbunden, - wobei zwischen dem Leiter (15) und den beiden zweiten elektrischen Anschlüssen (5B, 10B) eine zusätzliche elektrisch leitende Verbindung besteht.- The first electrical connections (5A, 10A) of both capacitors (5, 10) are electrically conductively connected via a flat conductor (15), - one between the conductor (15) and the two second electrical connections (5B, 10B) there is an additional electrically conductive connection.
2. Kondensatormodul nach dem vorhergehenden Anspruch, - bei dem die zusätzliche elektrische Verbindung einen Draht (20) umfaßt.2. Capacitor module according to the preceding claim, - in which the additional electrical connection comprises a wire (20).
3. Kondensatormodul nach dem vorhergehenden Anspruch,3. capacitor module according to the preceding claim,
- bei dem der Draht (20) laserschweißbar ist.- In which the wire (20) is laser weldable.
4. Kondensatormodul nach dem vorhergehenden Anspruch,4. capacitor module according to the preceding claim,
- bei dem der Draht (20) ein Aluminiumdraht mit einer Dicke von etwa 2 mm ist .- In which the wire (20) is an aluminum wire with a thickness of about 2 mm.
5. Kondensatormodul nach einem der vorhergehenden Ansprüche,5. capacitor module according to one of the preceding claims,
- bei dem auf dem flächig ausgeformten Leiter (15) zusätzliche elektrische Bauelemente (25) vorhanden sind, die eine hochohmige elektrische Verbindung herstellen.- Additional electrical components (25) are present on the flat conductor (15), which produce a high-resistance electrical connection.
6. Kondensatormodul nach dem vorhergehenden Anspruch,6. capacitor module according to the preceding claim,
- bei dem die elektrischen Bauelemente (25) elektrische Widerstände umfassen.- In which the electrical components (25) comprise electrical resistors.
7. Kσndensatormodul nach einem der vorhergehenden Ansprüche, - bei dem die zweiten elektrischen Anschlüsse (5B, 10B) beider Kondensatoren (5, 10) zusätzlich über ein erstes Verbindungsblech (30) elektrisch leitend miteinander verbun- den sind, das im elektrischen Kontakt mit dem flächig aus- ' geformten Leiter (15) steht.7. capacitor module according to one of the preceding claims, - in which the second electrical connections (5B, 10B) of the two capacitors (5, 10) are additionally connected to one another in an electrically conductive manner via a first connecting plate (30) the are that is in electrical contact with the surface off 'shaped head (15).
:8. Kondensatormodul nach einem der vorhergehenden Ansprüche, - bei dem der flächig ausgeformte Leiter (15) über laserschweißbare Verbindungen (35) im elektrischen Kontakt mit den ersten elektrischen Anschlüssen (5A, 10A) steht.:8th. Capacitor module according to one of the preceding claims, - in which the flat-shaped conductor (15) is in electrical contact with the first electrical connections (5A, 10A) via laser-weldable connections (35).
9. Kondensatormodul nach dem vorhergehenden Anspruch, - bei dem vernickelte. Anschlußbleche (35) an dem flächig ausgeformten Leiter (15) als laserschweißbare Verbindungen vorhanden sind.9. capacitor module according to the preceding claim, - in the nickel-plated . Connection plates (35) are provided on the flat-shaped conductor (15) as laser-weldable connections.
10.Kondensatormodul nach einem der vorhergehenden Ansprüche, - bei dem zumindest einer der. ersten, elektrischen Anschlüsse (5A, 10A) eines der beiden Kondensatoren (5, 10) mit einem dritten Kondensator. (40) elektrisch leitend über ein zweites Verbindungsblech- (45) verbunden ist. 10. capacitor module according to one of the preceding claims, - in which at least one of . first, electrical connections (5A, 10A) of one of the two capacitors (5, 10) with a third capacitor . (40) is electrically conductively connected via a second connecting plate (45).
11.Kondensatormodul nach dem vorhergehenden Anspruch, -• bei dem die Kontaktbereiche (5C, IOC) zwischen den ersten elektrischen Anschlüssen (5A, 10A) und dem zweiten Verbindungsblech (45) laserschweißbar ist, 11. capacitor module according to the preceding claim, - • in which the contact areas (5C, IOC) between the first electrical connections (5A, 10A) and the second connecting plate (45) can be laser welded,
12. Kondensatormodul nach einem der vorhergehenden Ansprüche,12. capacitor module according to one of the preceding claims,
- .bei dem der- Leite ' (15) eine Kunststoffplatte umfaßt.-. der der Leite ' (15) comprises a plastic plate.
13. erfahren zur Herstellung eines Kondensatormoduls (1) bei dem - wenigstens zwei Kondensatoren (5, 10) mit jeweils einem ersten (5A, 10A) und zweiten (5B, 10B) elektrischen Anschluß bereitgestellt und deren erste elektrische Anschlüsse (5A,. 10A) mittels Schweißens mit einem flächig ausgeformten Leiter (15) elektrisch leitend verbünden werden, - zusätzlich im gleichen Verfahrensschritt der Leiter (15) elektrisch leitend mittels Schweißens mit den beiden zweiten elektrischen Anschlüssen (5B, 10B) elektrisch leitend verbunden wird.13. Experienced to produce a capacitor module (1) in which - at least two capacitors (5, 10) each having a first (5A, 10A) and second (5B, 10B) electrical connection are provided and their first electrical connections (5A,. 10A ) are connected in an electrically conductive manner by means of welding to a flat conductor (15), - In addition, in the same process step, the conductor (15) is electrically conductively connected to the two second electrical connections (5B, 10B) by means of welding.
14.Verfahren nach dem vorhergehenden Anspruch,14.The method according to the preceding claim,
- bei dem ein Leiter (15) verwendet wird, auf dem elektrische Bauelemente (25) zur Herstellung einer hochohmigen elektrischen Verbindung vormontiert sind.- In which a conductor (15) is used, on which electrical components (25) are preassembled to produce a high-resistance electrical connection.
15. erfahren nach dem vorhergehenden Anspruch,15. experienced according to the preceding claim,
- bei dem als elektrische Bauelemente (25) Widerstände verwendet werden.- In which resistors are used as electrical components (25).
16.Verfahren nach einem der vorhergehenden Ansprüche 13 bis 15,16.The method according to any one of the preceding claims 13 to 15,
- bei verzinnte oder vernickelte Anschlußbleche (35) , die an dem Leiter (15) als Kontakte zu den ersten elektrischen Anschlüssen vorhanden sind, lase verschweißt werden.- In the case of tinned or nickel-plated connecting plates (35), which are present on the conductor (15) as contacts to the first electrical connections, are welded loosely.
17. erfahren nach einem der vorhergehenden Ansprüche 13 bis 16,17. experience according to one of the preceding claims 13 to 16,
- bei dem der Leiter (15) mittels eines elektrisch leitenden Drahts (20) mit den beiden zweiten elektrischen Anschlüs- sen (5B, 10B) elektrisch leitend verbunden wird.- in which the conductor (15) is electrically conductively connected to the two second electrical connections (5B, 10B) by means of an electrically conductive wire (20).
18.Verfahren nach dem vorhergehenden Anspruch,18.The method according to the preceding claim,
- bei- dem der Draht (20) mittels eines weiteren verzinnten oder vernickelten Anschlußblechs (36) in elektrisch lei- tenden Kontakt mit dem flächig ausgeformten Leiter gebracht wird. - in which the wire (20) is brought into electrically conductive contact with the flat conductor by means of a further tin-plated or nickel-plated connecting plate (36).
EP04762630A 2003-08-12 2004-08-09 Capacitor module and method for the production thereof Expired - Lifetime EP1654744B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10337041A DE10337041A1 (en) 2003-08-12 2003-08-12 Capacitor module and method for its production
PCT/DE2004/001785 WO2005015585A1 (en) 2003-08-12 2004-08-09 Capacitor module and method for the production thereof

Publications (2)

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EP1654744A1 true EP1654744A1 (en) 2006-05-10
EP1654744B1 EP1654744B1 (en) 2007-05-16

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US (1) US20070008676A1 (en)
EP (1) EP1654744B1 (en)
JP (1) JP4787749B2 (en)
AT (1) ATE362641T1 (en)
DE (2) DE10337041A1 (en)
WO (1) WO2005015585A1 (en)

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FR2915626B1 (en) 2007-04-24 2010-10-29 Batscap Sa MODULE FOR ELECTRIC ENERGY STORAGE ASSEMBLY
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Also Published As

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JP4787749B2 (en) 2011-10-05
ATE362641T1 (en) 2007-06-15
WO2005015585A1 (en) 2005-02-17
DE502004003847D1 (en) 2007-06-28
DE10337041A1 (en) 2005-03-10
JP2007502018A (en) 2007-02-01
US20070008676A1 (en) 2007-01-11
EP1654744B1 (en) 2007-05-16

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